Single Point Lesson: Metal contamination

Step 1 WHY was the compressed air system not maintained? There was no preventive maintenance routine in place.

Step 2 WHY was the rejection system not functioning? The compressed air reject system operating the reject mechanism failed.

Step 3 Why did the compressed air system fail? The system was inadequately maintained.

Step 4 WHY was the compressed air system not maintained? There was no preventive maintenance routine in place.

Step 5 WHY was there no preventive maintenance routine in place? The compressed air system had recently been purchased and routine maintenance requirements had not been assessed.

Best Practice: New equipment introduced into the workplace should undergo a preventive maintenance assessment.